Wei-Zhi Wu, You-Hong Xu. Rough approximations of intuitionistic fuzzy sets in crisp approximation spaces. In Maozhen Li, Qilian Liang, Lipo Wang, Yibin Song, editors, Seventh International Conference on Fuzzy Systems and Knowledge Discovery, FSKD 2010, 10-12 August 2010, Yantai, Shandong, China. pages 309-313, IEEE, 2010. [doi]
Abstract is missing.